First, WELCOME TO WEBSLEUTHS!!
I am only presuming LE used sophisticated satellite data and analyses for their visual data display at the recent presser that showed one human (on a motorcycle) in the search area picked up by their anaysis. Here is an example of how LE and military can use this technology.
<p>Satellite surveillance technology refers to the use of commercially owned and operated Earth-orbiting satellites that capture high-resolution images of the Earth's surface. This technology allows law enforcement and intelligence agencies to conduct surveillance without being detected by their...
www.ebsco.com
But to answer your question, I have no idea the date and time of that 'snapshot' sample displayed. Did anyone catch that?
So, if my presumption is correct, then that detailed imagery and analysis could, in theory, and hopefully in practice for this case, be analyzed for any point in time that is available to LE in archives.
Further, I wonder if it was this kind of imagery and analyses that helped LE determine someone wasn't where they said they were. Or at the least, the imagery put on display at the presser could put pressure on a suspect or their accomplice(s), to realize their story may be found to be false.
IOW, perhaps detective investigations have become much more sophisticated than when Josie was in LE long ago.